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Eddy magnetic damping type damper

A technology of buffer damping and magnetic damping, which is applied in the direction of magnetic springs, springs, springs/shock absorbers, etc., and can solve problems such as easy leakage, high manufacturing precision of damping elements, and narrow operating temperature range

Inactive Publication Date: 2006-01-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of easy leakage, narrow working temperature range, high manufacturing precision of the damping element and short service life of the damping element in the existing hydraulic buffer damping device, and further provide an eddy current magnetic damping type Buffer damping device

Method used

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specific Embodiment approach 1

[0005] Specific implementation mode one: combine figure 1 Describe this embodiment, it is made up of metal shell 1, circular permanent magnet 2, guide rod 3; Metal shell 1 inside has cylindrical cavity 1-1; The outer circle surface of circular permanent magnet 2 and metal shell The circular cavity wall 1-2 of the inner cylindrical cavity 1-1 of the body 1 is slidingly connected, the left end surface of the guide rod 3 is connected with the right magnetic pole surface of the circular permanent magnet 2, and the right end of the guide rod 3 passes through the metal A section is exposed behind the through hole 1-3 on the right end of the housing 1, and the circular permanent magnet 2 is axially magnetized. The material of the circular permanent magnet 2 can be selected from NdFeB, SmCo, AlNiCo.

specific Embodiment approach 2

[0006] Specific implementation mode two: combination figure 1 To illustrate this embodiment, there is a gap L between the outer circular surface of the circular permanent magnet 2 and the circular cavity wall 1-2 of the cylindrical cavity 1-1 inside the metal shell 1 in the specific embodiment one. The gap L is 0.01 mm to 0.8 mm; the wall thickness L1 of the metal shell 1 is 1 mm to 6 mm; the surface roughness of the circular cavity wall 1-2 of the cylindrical cavity 1-1 inside the metal shell 1 is less than or equal to 1.6 μm .

specific Embodiment approach 3

[0007] Specific implementation mode three: combination figure 1 To describe this embodiment, in the first embodiment, the material of the metal shell 1 is copper, copper alloy or aluminum alloy.

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Abstract

The present invention relates to eddy magnetic damping technology, and aims at providing eddy magnetic damper superior to available hydraulic buffering damper. The eddy magnetic damper includes metal casing with inside cylindrical cavity, axially magnetized circular permanent magnet with outer surface slide connecting the inner wall of the cylindrical cavity, and guide rod with left end connected to the right magnetic pole of the circular permanent magnet and right end penetrating the through hole on the right end of the metal casing and exposing one section. Compared with available hydraulic buffering damper, the present invention has the advantages of simple structure, relaxed part machining requirement, no need of liquid, low cost, wide work temperature range from -80 deg c to +100 deg c and long service life.

Description

Technical field: [0001] The invention relates to the technical field of eddy current magnetic damping. Background technique: [0002] Buffering and damping components are indispensable basic components for many electromechanical equipment, such as buffering and shock absorbers for automobiles, trains, motorcycles, electric vehicles, bicycles and other vehicles, as well as for fixed equipment such as precision machine tools and elevated bridges. Buffer dampers, etc. At present, the most widely used buffer damper in engineering is the hydraulic damper, which uses the frictional heat generated when the viscous fluid flows through the damping hole to consume energy and play a role in buffering and damping. However, the hydraulic buffer damping device has the disadvantages of easy leakage, narrow working temperature range, high manufacturing precision of the damping element, and short service life of the damping element. Invention content: [0003] The purpose of the present ...

Claims

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Application Information

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IPC IPC(8): F16F6/00F16F15/03
Inventor 王少纯邓宗全
Owner HARBIN INST OF TECH
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